NDLI: Database techniques for archival of solid models

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Database techniques for archival of solid models

Content Provider	ACM Digital Library
Author	McWherter, David Regli, William Shokoufandeh, Ali C. Peabody, Mitchell
Abstract	This paper presents techniques for managing solid models in modern relational database management systems. Our goal is to enable support for traditional database operations (sorting, distance metrics, range queries, nearest neighbors, etc) on large databases of solid models. As part of this research, we have developed a number of novel storage and retrieval strategies that extend the state-of-the-art in database research as well as change the way in which solid modeling software developers and design and manufacturing enterprises view CAD-centric data management problems.Past research and current commercial systems for engineering information management and Product Data Management (PDM) have predominantly taken annotation and document-based approaches—where the solid modeling data itself is simply stored as a related file to other project documents. Research in CAD and engineering databases has produced great advances, such as representation schemas for STEP-based data elements, however existing technologies stop short of enabling content-based and semantic retrieval of solid modeling data of the types now available for other higher-dimensional media (images, audio and video).Our approach encodes solid model BRep information as a Model Signature Graph. We demonstrate how Model Signature Graphs can be used for topological similarity assessment of solid models and enable clustering for data mining of a large design repositories. We believe this work will begin to bridge the solid modeling and database communities, enabling new paradigms for interrogation of CAD datasets.
Starting Page	78
Ending Page	87
Page Count	10
File Format	PDF
ISBN	1581133669
DOI	10.1145/376957.376968
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2001-05-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Solid modeling Database clustering Geometric reasoning Shape similarity Database indexing
Content Type	Text
Resource Type	Article

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